Test 1 Flashcards
What is quality assessment?
Continual monitoring of entire test process from test ordering and specimen collection thru reporting and interpreting results.
Is Chloride an inorganic or organic substance in urine?
Inorganic
Is Creatinine an inorganic or organic substance in urine?
Organic
Is Potassium an inorganic or organic substance in urine?
Inorganic
Is Urea an inorganic or organic substance in urine?
Organic
Is Uric Acid an inorganic or organic substance in urine?
Organic
Is Sodium an inorganic or organic substance in urine?
Inorganic
Urine composition is __% water and __% solutes.
95 and 5
Kidneys form urine as an __________ of plasma.
Ultrafiltrate
The glomerulus filters ____ mL/day?
170,000
Urine volume depends on the body’s _______ and _______ excretion.
Hydration and water
Average urine output?
1200 - 1500 ml/day
Normal urine output?
600 - 2000 ml/day
Define oliguria?
Decrease in urine
Define anuria?
Absence of urine
Define polyuria?
Increase in daytime urine
Define nocturia?
Decrease in nighttime urine
A patient with oliguria might progress to having?
Anuria
Labels for urine containers should be placed on container when?
Before collection
Prolonged exposure of urine to light will cause?
Decreased bilirubin
Clarity is _______ if urine is left out for > 2 hours.
Decreased
Odor is ______ if urine is left out for > 2 hours.
Increased
pH is _______ if urine is left out for > 2 hours.
Increased
Glucose is _______ if urine is left out for >2 hours.
Decreased
Ketones are _______ if urine is left out for >2 hours.
Decreased
Bilirubin is ______ if urine is left out for >2 hours.
Decreased
Urobilinogen is ______ if urine is left out for >2 hours.
Decreased
Nitrites are _______ if urine is left out for >2 hours.
Increased
RBCs/WBCs are ________ if urine is left out for >2 hours.
Decreased
Bacteria is _______ if urine is left out for >2 hours.
Increased
Trichomonas is ______ if urine is left out for >2 hours.
Decreased
Clearance tests used to determine the glomerular filtration rate must measure substances that are?
Neither reabsorbed or secreted by tubules
The kidney is comprised of how many nephrons?
1 - 1.5 million
The nephron is the __________ ____ of the kidney.
Functional unit
The total renal blow flow is approximately?
1200 mL/min
Order of blood flow through the nephron is?
Afferent arteriole, efferent arteriole, peritubular capillaries, vasa recta
Total renal plasma flow is approximately?
600 mL/min
Glomerular filtrate is described as?
Protein-free ultra filtrate of plasma
Increased production of aldosterone causes?
Increased plasma sodium levels
The primary chemical affected by the renin-angiotensis-aldosterone system is?
Sodium
For active transport to occur a substance must?
Combine with a carrier protein to create electrochemical energy
Water is passively reabsorbed in all parts of the nephron except the?
Ascending loop of henle
The enzyme renin is produced by the kidney in response to?
Low plasma sodium levels
Production of antidiuretic hormone is controlled by the?
State of body hydration
Primary pigment responsible for normal urine is?
Urochrome
A dark yellow urine containing yellow foam may contain?
Bilirubin
A urine specimen that turns brown after standing may contain?
Homogenistic acid
The pigment responsible for a pink precipitate know as amorphous urates in refrigerated urine is?
Uroerythrin
Methyl red has a pH of ___ to ___ and produces what color?
4 to 6
Orange to Yellow
Bromthymol blue has a pH of ___ to ___ and produces what color?
6 to 9
Blue to Green
The confirmatory test for a protein is?
SSA (Sulfosalicylic Acid) precipitation
The ________ _______ test is specific for glucose on the regent strip.
Glucose oxidase
The _______ ________ test is also a glucose test but is outside of the reagent strip.
Copper reduction
The primary reagent on reagent strips for Ketones is ______ ______?
Sodium Nitroprusside
The principle of the Bilirubin reagent strip is a ______ _______.
Diazo Reaction
The Ictotest is confirmatory for _______.
Bilirubin
The reagent strip reaction for Nitrites is a __________ reaction.
Greiss